NL7709578A - TELEPHONE LINE SWITCH. - Google Patents

TELEPHONE LINE SWITCH.

Info

Publication number
NL7709578A
NL7709578A NL7709578A NL7709578A NL7709578A NL 7709578 A NL7709578 A NL 7709578A NL 7709578 A NL7709578 A NL 7709578A NL 7709578 A NL7709578 A NL 7709578A NL 7709578 A NL7709578 A NL 7709578A
Authority
NL
Netherlands
Prior art keywords
telephone line
line switch
switch
telephone
line
Prior art date
Application number
NL7709578A
Other languages
Dutch (nl)
Original Assignee
Thomson Csf
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Csf filed Critical Thomson Csf
Publication of NL7709578A publication Critical patent/NL7709578A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers
NL7709578A 1976-09-03 1977-08-31 TELEPHONE LINE SWITCH. NL7709578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7626614A FR2363952A1 (en) 1976-09-03 1976-09-03 TELEPHONE LINE CIRCUIT

Publications (1)

Publication Number Publication Date
NL7709578A true NL7709578A (en) 1978-03-07

Family

ID=9177355

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7709578A NL7709578A (en) 1976-09-03 1977-08-31 TELEPHONE LINE SWITCH.

Country Status (8)

Country Link
JP (1) JPS5332605A (en)
BE (1) BE858262A (en)
DE (1) DE2739718A1 (en)
FR (1) FR2363952A1 (en)
GB (1) GB1530089A (en)
IT (1) IT1084094B (en)
NL (1) NL7709578A (en)
SE (1) SE7709758L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531358A (en) * 1978-08-28 1980-03-05 Nec Corp Subscriber circuit
JPS5537046A (en) * 1978-09-06 1980-03-14 Nec Corp Subscriber's circuit
FR2437123A1 (en) * 1978-09-19 1980-04-18 Thomson Ericsson Telephones So Electronic power supply for telephone lines - comprises operational amplifier with feedback followed by transistor stage
NL7810086A (en) * 1978-10-06 1980-04-09 Philips Nv POWER BRIDGE FOR A SUBSCRIBER FLOW.
JPS5593392A (en) * 1979-01-10 1980-07-15 Nec Corp Subscriber circuit
NL7904159A (en) * 1979-05-28 1980-12-02 Philips Nv DEVICE FOR SUPPLYING SIGNALS TO A TELEPHONE LINE.

Also Published As

Publication number Publication date
FR2363952B1 (en) 1981-09-25
IT1084094B (en) 1985-05-25
GB1530089A (en) 1978-10-25
SE7709758L (en) 1978-03-04
DE2739718A1 (en) 1978-03-09
JPS5332605A (en) 1978-03-28
BE858262A (en) 1977-12-16
FR2363952A1 (en) 1978-03-31

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Legal Events

Date Code Title Description
BV The patent application has lapsed